Staff Software Engineer, Database Platform

Job not on LinkedIn

🔥 0 minutes ago

🇺🇸 United States – Remote

💵 $229.5k - $260k / year

⏰ Full Time

🔴 Lead

🔙 Backend Engineer

👻 Ghost score 20%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Horizon3.ai

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2019

🔒 Cybersecurity

🤖 Artificial Intelligence

☁️ SaaS

Cybersecurity • Artificial Intelligence • SaaS

Horizon3. ai is a cybersecurity company that specializes in autonomous penetration testing through its platform, NodeZero. The company's mission is to proactively identify and address attack vectors before they can be exploited, allowing organizations to continuously assess their security posture across various environments including cloud, IoT, and on-premises systems. Founded by veterans from the US Special Operations and National Security sectors, Horizon3. ai offers a self-service SaaS solution that provides organizations with insights into their security vulnerabilities without requiring persistent or credentialed agents.

📋 Description

• Set the technical direction for Horizon3's database systems, including schema design, data modeling, indexing strategies, and query contracts • Own query performance by identifying slow queries, analyzing execution plans, implementing fixes, and designing regression observability • Own reliability engineering for data stores, including replication, failover, backup validation, capacity planning, and incident response • Design and own safe production schema-migration infrastructure, including zero-downtime migrations, reversible changes, and migration testing standards • Review application teams' schemas, query patterns, and ORM usage • Set database access patterns that prevent production issues • Mentor engineers through design reviews, code reviews, and technical pairing • Write production code, create architecture designs, and make performance and reliability decisions • Support database architecture and reliability across PostgreSQL, graph databases, and time-series stores

🎯 Requirements

• 8+ years of professional software engineering experience with deep specialization in database systems and data infrastructure • Expert-level PostgreSQL proficiency, including production query-plan tuning, replication topology management, and debugging vacuum and locking issues • Deep understanding of normalization vs. denormalization, partial/composite/covering indexes, partitioning, and connection pooling at scale • Experience designing zero-downtime migration workflows in high-volume production environments • Experience with graph databases such as Neo4j or equivalent • Proficiency with time-series or columnar stores such as ClickHouse or TimescaleDB, or equivalent • Experience running database systems in Kubernetes or cloud-managed environments such as RDS or Cloud SQL at production scale • Proficiency in Go or Python • Track record of setting engineering standards adopted by other engineers • Ability to produce clear architecture documents and drive database design decisions across team boundaries • Experience mentoring mid-level engineers through database design and code review • Minimum 25Mbps consumer-grade broadband connection • Authorization to work in the United States is requested in the application form

🏖️ Benefits

• Equity package in the form of stock options may be available • Health, vision and dental care for you and your family • Flexible vacation policy • Generous parental leave • 100% remote work flexibility • Career development opportunities • Inclusive and collaborative work culture • Up to 5% travel may be required